A proxy lets you relay requests from one server/service to another.

Create a server which listens on a port passed from the command line, takes any
requests to the path `/proxy` and proxies them to `http://localhost:65535/proxy`.

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##HINTS

This exercise requires you to install the `h2o2` module, which is a hapi plugin
for handling proxies. You'll need to register the plugin in your code in
order to use the `proxy` configuration:

```js
var H2o2 = require('h2o2');

await server.register(H2o2);
```

The `proxy` key can be used to generate a reverse proxy handler.

```js
handler: {
    proxy: {
        host: '127.0.0.1',
        port: 65535
    }
}
```

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Background info: en.wikipedia.org/wiki/Proxy_server